Selection
From product experiments to data quality.
This selection combines named references, independent product projects and anonymized project types. Confidential client details remain excluded; external links are used only where a public project is available.
Project · Telefónica Germany
UA to GA4 Migration
The focus of this engagement was the migration from Universal Analytics to GA4 in a larger enterprise context. This included the concept and setup of client-side GA4 tags in Google Tag Manager, alignment of events and parameters, and quality assurance of the implementation. The goal was a reliable GA4 setup that captures key user interactions cleanly and can be used as a foundation for analysis, reporting and optimization.
Key technologies
- GA4
- Google Tag Manager
- Client-side Tracking
- dataLayer
- Data quality
Status: Client project / reference
Independent app project
Würfelarena iOS App
Würfelarena is an iOS app for digital dice sessions, built with SwiftUI. The project is both an independent product and a hands-on testing ground for app analytics, consent management and campaign tracking. It uses Firebase, Usercentrics, AppsFlyer and anonymous server-side tracking to connect product development with practical data collection.
Key technologies
- SwiftUI
- Firebase
- Usercentrics
- AppsFlyer
- Server-side Tracking
Status: Available in the App Store
Open in the App Store →Own project · Internal tooling
Browser Tracking Extension
The Browser Tracking Extension is an internal tooling project for structured analysis of personal browser activity. A Chrome Manifest V3 extension sends privacy-conscious, redacted events through a Cloud Run API into BigQuery. Historical Chrome history data can also be sanitized and imported. The project combines extension development, API design, BigQuery schema work, live sync, a local queue and future analytics models.
Key technologies
- Chrome Extension
- Manifest V3
- Cloud Run
- BigQuery
- API
Status: Prototype / evolving
Anonymized client project type
Server-side Tracking Implementations
This project type covers Cloud Run and server-side tracking setups for GA4 and marketing endpoints. The focus is on controlled event forwarding, clean vendor logic and more reliable data quality. It also includes debugging, QA and understandable documentation for analytics, marketing and engineering teams. Client details intentionally remain anonymized.
Key technologies
- Cloud Run
- Server-side Tracking
- GA4
- Marketing Tags
- Data quality
Status: Selected project type